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Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
DOE extends Centrus’s HALEU production contract by one year
Centrus Energy has announced that it has secured a contract extension from the Department of Energy to continue—for one year—its ongoing high-assay low-enriched uranium (HALEU) production at the American Centrifuge Plant in Piketon, Ohio, at an annual rate of 900 kilograms of HALEU UF6. According to Centrus, the extension is valued at about $110 million through June 30, 2026.
P. K. Sarkar, M. A. Prasad
Nuclear Science and Engineering | Volume 74 | Number 1 | April 1980 | Pages 52-60
Technical Note | doi.org/10.13182/NSE80-A18947
Articles are hosted by Taylor and Francis Online.
Using the earlier formulations for predicting the error in a Monte Carlo game, a few general results about Russian roulette and splitting are obtained. Furthermore, the integral equations for the variance are numerically solved to compare different biasing procedures such as exponential transform and path-length stretching in multigroup transport problems. It is also shown that the results for an infinite medium are close to the results for thick finite slabs. Use of the moments method to solve the infinite medium problem results in considerable saving of computing time.
